28. From the salary of a worker, 10...
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28. From the salary of a worker, 10% is deducted as house rent, 15% of the rest he spends on children's education and 10% of the balance, he spends on clothes. After this expenditure, he is left with * 1377. His salary is (1) 2000 (2) 2040 (3) 2100 (4) * 2200

11th - 12th Class
Maths
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145
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tet the salary of wooker be ( x ) " 10) deduckd for houserent = 0.1x 15% of rest on childrens = (0.15)( (0.9 x) ) [ begin{array}{l} text { 10% on his clothes = } begin{array}{c} 0.135 x 0.12(0.765 x] end{array} text { Remained }=frac{51377}{0.0765} -0.1 x-(0.15)(0.971)-0.1 x=1377 end{array} ] After hous rent remained falance ( =0.9 x ) [ begin{aligned} text { Affor children's education } &=0.9 x-0.135 % &=0.765 y end{aligned} ] Aster cloming [ begin{array}{l} =0.765 times-0.0765 =0.6885 mathrm{y} end{array} ] ne remained [ begin{array}{c} text { remained with } 2137+ 0.6885 x=31377 x=72000 end{array} ]
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